/*
Error: Undefined variable: "$root".
        on line 50 of css_common.scss

45:   opacity: 1;
46:   /*visibility:visible;*\/
47:   pointer-events: auto;
48: }
49: .loading {
50:   background: url($root + "loading.gif");
51:   background-size: 16px 16px;
52:   background-repeat: no-repeat;
53:   height: 32px;
54:   top: 0;
55:   left: 0;

Backtrace:
css_common.scss:50
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/script/tree/variable.rb:49:in `_perform'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/script/tree/node.rb:58:in `perform'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/script/tree/operation.rb:64:in `_perform'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/script/tree/node.rb:58:in `perform'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/script/tree/funcall.rb:173:in `perform_arg'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/script/tree/funcall.rb:124:in `block in _perform'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/script/tree/funcall.rb:124:in `each'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/script/tree/funcall.rb:124:in `each_with_index'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/script/tree/funcall.rb:124:in `each'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/script/tree/funcall.rb:124:in `map'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/script/tree/funcall.rb:124:in `_perform'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/script/tree/node.rb:58:in `perform'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:397:in `visit_prop'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:36:in `visit'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:160:in `block in visit'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/stack.rb:79:in `block in with_base'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/stack.rb:115:in `with_frame'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/stack.rb:79:in `with_base'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:160:in `visit'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:433:in `block (2 levels) in visit_rule'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:433:in `map'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:433:in `block in visit_rule'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:181:in `with_environment'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:431:in `visit_rule'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:36:in `visit'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:160:in `block in visit'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/stack.rb:79:in `block in with_base'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/stack.rb:115:in `with_frame'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/stack.rb:79:in `with_base'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:160:in `visit'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:52:in `block in visit_children'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:52:in `map'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:52:in `visit_children'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:169:in `block in visit_children'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:181:in `with_environment'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:168:in `visit_children'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:36:in `block in visit'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:188:in `visit_root'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:36:in `visit'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:159:in `visit'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:8:in `visit'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/root_node.rb:36:in `css_tree'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/tree/root_node.rb:29:in `render_with_sourcemap'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/engine.rb:382:in `_render_with_sourcemap'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/engine.rb:299:in `render_with_sourcemap'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/plugin/compiler.rb:492:in `update_stylesheet'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/plugin/compiler.rb:215:in `block in update_stylesheets'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/plugin/compiler.rb:209:in `each'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/plugin/compiler.rb:209:in `update_stylesheets'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/plugin.rb:82:in `update_stylesheets'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/exec/sass_scss.rb:340:in `watch_or_update'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/exec/sass_scss.rb:51:in `process_result'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/exec/base.rb:52:in `parse'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/lib/sass/exec/base.rb:19:in `parse!'
d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sass-3.4.22/bin/scss:13:in `<top (required)>'
d:/Ruby200-x64/bin/scss:23:in `load'
d:/Ruby200-x64/bin/scss:23:in `<main>'
*/
body:before {
  white-space: pre;
  font-family: monospace;
  content: "Error: Undefined variable: \"$root\".\A         on line 50 of css_common.scss\A \A 45:   opacity: 1;\A 46:   /*visibility:visible;*/\A 47:   pointer-events: auto;\A 48: }\A 49: .loading {\A 50:   background: url($root + \"loading.gif\");\A 51:   background-size: 16px 16px;\A 52:   background-repeat: no-repeat;\A 53:   height: 32px;\A 54:   top: 0;\A 55:   left: 0;"; }
